I've tested almost every Dyson vacuum and these are the 11 cheapest deals I'd buy this Prime Day

This is an excellent deal on Dyson's superb V8 vacuum – it's $10 shy of the lowest ever price we've seen on the V8 Plus. This is the oldest model in the current lineup, but remains ultra-popular. The vacuum is simple but very effective, with strong suction and great maneuverability. The Plus version comes with a Hair screw tool borrowed from newer models – it's perfect for getting hair (and dust) off furniture. You can read all about it in our Dyson V8 review.

If you have a lot of hard floors, the V8 Absolute comes with a separate Fluffy floorhead, and is $349.99 (was $519.99) at Walmart or at Dyson.com. Or if you don't need the fluffy head but could do with some more detail tools, there's the V8 Extra for $418.99 (was $469.99) at Walmart.

The V15 Detect is one down from the latest-and-greatest Dyson vacuum, with advanced features like dust particle sensing and automatic adjustment, plus a dedicated Fluffy cleaner head for hard floors, with lasers to highlight dirt that might be missed. Head to our V15 Detect review to find out more. This Amazon Prime Day sale knocks $180 off. That's just $20 more than the lowest price we have on record for this vacuum, and an incredibly good deal.

If you want more accessories, check out the V15 Detect Extra for $599.99 (was $799.99) at Best Buy instead.

The V12 is a scaled-down vacuum that's perfect for smaller homes. It launched alongside the V15 and as such has a lot of the same premium features, including real-time dust reports, automatic suction adjustment and floorhead lasers. In our V12 Detect Slim review our tester was especially impressed with how light and maneuverable this vacuum is, and with $200 off at Dyson, it's a bit of a steal right now. Beware: the dust cup is small, so it's not one for large homes with lots of dust or pet hair.

The V11 isn't the latest and greatest Dyson vacuum, but for many people it'll offer the best balance of price to features. There's a massive $150 off right now – not the cheapest price we've ever seen on a V11, but an excellent discount nonetheless. There's strong suction, a supremely maneuverable floorhead, and useful features like an LCD screen to provide information.

If you want more detail tools, the V11 Extra is $449.99 (was $599.99) at Walmart or direct from Dyson.com.

The Gen5detect is the newest and best Dyson vacuum based on specs, and the place to go for a discount is Dyson direct, where there's a massive $150 off. That's not the cheapest this premium vacuum has ever been, but it's still a strong discount. It has the longest battery life you'll find in the range, with up to 70 minutes of cleaning on one charge. In our Dyson Gen5detect review, our reviewer was fascinated by the real-time dust reports, which show you exactly what's being sucked up and when the floor is clean. We're also fans of the fluffy floorhead with a bright laser to illuminate every last speck of dirt.

The V7 is really getting on a bit now, and isn't included in Dyson's main range any more. There's $80 off at Amazon ahead of Prime Day – not the cheapest this vacuum has been, but a decent deal if you've decided this is the model for you. It's lightweight and very easy to maneuver, and comes with a detangling floorhead.

The best pre-Prime Day deal I've spotted is on the Cyclone V10, an older model that often gets forgotten about. This current deal matches the lowest price we have on record, and is well worth considering. The V10 followed the V8 and it's an all-round better machine, offering 20 minutes more runtime, higher suction and a bigger dust cup. There are fewer extra features than you'll find with newer models, but it's still a capable cleaner. In our Dyson Cyclone V10 review we found this vacuum powerful and well designed, but noted that it's only really worth buying if you find a good discount – which this is.

The V15 Detect is the second newest model in Dyson's vacuum lineup, and packs incredible suction and useful advanced features. In our V15 Detect review, our tester was impressed with dust detection and automatic suction adjustment, and the laser that illuminates dirt on hard floors. There are a few different versions of this vacuum – the best deal I've spotted is on this 'Extra' model, which comes extra detail tools on top of the usual selection (these include a mattress tool and mini soft dusting brush). The lowest price we've seen on a V15 before is £479, but that's on a version with fewer tools, and it's very rare to see those kinds of lows.

This is a slightly updated, more powerful version of the original Dyson V8 – the oldest vacuum in the current lineup, but still the most popular. Expect capable cleaning and excellent maneuverability, but fewer advanced features than newer models. The best price right now is at Dyson, where there's £80 off. It's not the cheapest we've ever seen this vacuum – it dropped to £199 on Black Friday last year – but it's still a decent discount, and a very low price to pay for a Dyson vacuum. You can read all about the original version in our Dyson V8 review.

John Lewis price: £249.99.

The V15s Submarine is the V15 but with an extra mopping floorhead that enables it to tackle wet cleaning tasks as well as vacuuming. All that functionality comes at a price, and discounts aren't super-common, so this £100 price drop is worth taking notice of. The lowest price I've seen on this model is £599.99 over Black Friday last year, but those kinds of lows are very rare. Head to our Dyson V15s Detect Submarine review to find out what we thought of it.

Dyson price: £699.99
John Lewis price: £699.99

The Gen5 is the newest and most powerful vacuum in Dyson's range. Offering the longest battery life and the most suction, along with advanced dirt detection features and a fluffy floorhead with a dirt-illuminating laser. This isn't the lowest price we've seen – it dropped to £570 over Black Friday – but it's still a strong discount. If you want the best of the best, this is it. Find out more in our Dyson Gen5detect review.

John Lewis price: £649